Let-off mechanism for looms.



W. P. DRAPER 6: E. S. WOOD.

LET-OFF MECHANISM FOR LOOMS.

APPLIUATION IILED JAN.6,1908.

2 SHEETS-SHEET 2.

Patented Feb. 16, 1909.

beamasitwoul {UNITED STATES PATENT OFFIOE.

WILLIAM F. DRAPER AND EVERETT s. WOOD, or HOPEDALE, MASSACHUSETTS; san) WOOD ASSIGNOR To SAID DRAPER.

minor-r mmcnmsu ron Loom.

Specification of Letters Patent.

Patented Feb. 1 6, 1909.

Application filed. January 6, 1998. Serial No. (09,469.

To all wlwm it may concern:

Be it known that we, WILLIALI F. DBAX'ER and Evsnu'rr S. W000, citizens of the United States, and residents of Ho edale, county of Worcester, State of Massac usetts, have invented certain new and useful Improvements in Let-Off Mechanism for Looms, of which the following is a full, clear, and exact specification.

It is generally conceded by those skilled in the art of weavin that the so-called .friction let-off, wherein a rope 'or chain'is carried around a sheave on the shaft of the warp-beam and attached to a weighted lever, to regulate the amount of tension, makes the most evenl laid filling and so far has ro-' duced the t cloth. Such let-0E mec anism is in widely-extended. use for the coarsest and finest fabrics, and largely for the intermediate ones, but it is open to one serious objection, viz: that the control or regulation of the warp tension is left to the weaver, who is obliged to move the wei ht on the lever as the beam unwinds, 'suc of the wei t being necessary on account of thechangmg leverage through which the warp acts in turning the beam. That is, the leverageis at the maximum with the-full beam and gradually decreases as the diameter of the yarn mass decreases, the leverage ratio between full andnearly em beam being more than' three to one ith no change of friction member is attached the result would be that'the warp tension would be fully three-times as t for the nearly emty be for the full'beam, w ile the weight of a full'beam is about 2; times that of an empty one. v.

In our resent invention we have devised a friction et-ofi mechanism wherein the ad eflected automatically by, av combination of justment of the tension on the warp the results due to the doc weight and diameter ofthe yarn mass as thebea'm un-' winds. 4 'In our studies leading up to the invention we have discovered that the change of weight of the beam, tpfiroperly controlled, 4 could be made to ofl'set 'e change of leverage through which the w'aY acts, so that by enlarging the dlilamgltxer o' thetbeamilafirrel without ma- -r1a. 'angi 1 we pm in diameter of thetull H w ve m 'the ratio between the t .yarn on t t e diameter of the yarn mass on weight on the lever to which the. i

;more, yarn on t a prpp y.

of the full beam and the empty beam substantially the same as the leverage ratio between the full and the nearlyzempty beam, and we, have so hung or mounted the beam that the change in weight practically balances the change in leverage. As a result a substantially uniform tension is maintained throughout the entire process of winding off the yarn. We are enabled to do. this because the enlargement of the beam barrel reduces the leverage ratio much more than it does the wei t of the yarn, and the result is most favors. le in weaving. Much more uniform warp tension is insured without any attention from the weaver or loom-fixer, than is now attained even when the necessary attention is given, as it 'is impracticable to shift the weights on all the looms of a cup 'ust when, and to the extent, require As ms are now made the diameter of the barrel is finite small, in order as get more creases the leverage ratio, while the amount of yarn gained b' the small barrel is easily com nsated for y a much smaller increase the beam by our inventiom That b enlargsomewhat the diameter e beam heads, and increasing the diameter of the barre in much proportion, we' are 53: enabled to makethe erence in warp leveragesbetween full and empty beam correond to the difierence in weights; and at e same time get as much, and probably ebeam.

We have, in the present of our invention, mounted the beam on levers on the loom frame and have consaid levers the fl x b e.- friction members which are passed around the sheaves ,fixedly connected with the beam, the parts being so constructed and arranged that the weight of-the beam'decreases the frlct on ed, substantially-eowqudly with the decrease in the leverage ofthe warg all. asthe diameter of the yarn es.

We have alsoa lied- 'to the sup rting levers in mi; maxmt thejstraihiof any sudden pull on the yarn is eased,obv1ating a yielditgiy' mounted whip-11:11 and preventing! formatiozin of plaeesm.

- our the -woven. exp

we have the use dike-sp s where is M tp-breakthe -yam, The varieus n'o features of-our invem e beam, and manifestly this intion will be full described in the subjo'med s ecification an particularly pointedout in t e following clalms.

Figure 1 is a rear elevation, centrally broken out of a sufiicient ortion of a loom with let-ofi mechanism em odying one ractical form of our present invention; I'ig."2 is a ri ht-hand side elevation of the mechanism il ustrated inFi 1; Fig. 3 is a top plan view of one of the beam su porting evers, below the line 33, Fig. 1; *i 4 is an inner side elevation of one of the cam bearing lnembers and the fixed guide for the u per end thereof; Fig. 5 is a top plan view 0 the guide; Fi 6 is an enlarged detail, partly in section, 0 the fulcrum and adjacent arts of one of the beam-supporting levers; B ig. 7 is a cross-section thereof on the line 7-7,

fieferring to the drawings the loom-sides 1 at the back of the loom have fixedly attached brackets 2, held in place b bolts 3 and providedat their up er en 5 with concaved seats 4 to receive t e journals of the warpbeam when the latter is first placed n t e loom. Each bracket has on its inner. face a lateral stop lug 5 best shown m F1 4 and 5, and an outwardly turned ear 6 w 1ch pro jects across the adjacent art of the loomside, each ear havingbg-f crum-stud 7 for a purpose to be descm d. Atthe lower end. eachjibracket is shaped topresentnan open. guide 8, the ear 6 being so located with relation' thereto as to prevent interference W181 'the.depending, elongated leg 9 of a'vertically m'ovab e, open bearing 19 which' normally supports one of the beamournals "during the unwinding of the The legs 9 .are. -;ver.- ticelly movable in the ides 8 and are there- -by-held from latera movement and .the ,upper ends of the legs-may move forward as far-ae the stop lugs 5, the latter preventing escape of the" bearing legs from -the guideswhen the beam is not m posltion m the bear- 1 46 .ings. At its lower end each leg is notched at 11, and preferabl brou h t to, a'transverse ed -"12,'see dotte 'hnes- .1g.-.1, betwee'r xthe si es ofthe notch, to engage the toothed part -;;'18,-'of. 'a lever'--1,4 shown as-Isubstantially -'.T E haped' in; cross-section.--.--;Two eithelevers i shown,- fulcrumed at; their outerendsg'as begexplsinedgand ejictendecl;. 1nwa rd:5,;to a wardeach-,other','"a's clearlygsl own Fig -1; helowe'r ge'ndsof the"i=bear1ng;2 legs; -being hpwn. asrearymrdly=joflset-,-- E g; to

m ibblt .1

' wh n k t nglithe'ibol in -web'- Figs. 3 and 6, and loosely cmbraciw the sleeve 19, the axial recess of the hub being materially larger than the external diameter of-the sleeve, as best shown in Fig. 7, and slightly flattened at. top and bottom, at 23. Tlns construction enables the lever to rock vertically about the sleeve us a fulcrum, and it can a so swing laterally to a limited extent, the front sulc. of each lever being normully held against a rib 24 on the web 17, see Fig.- 2-5, by u spring 25 interposed between the lover and an arm 26 rocking on the sleeve 19 between the hub 22 and tlw fixed arm 20. The arm 26 swings up and down with the lever 14, owing to a guidepin 27 for the spring, which pin is fixed to the arm and passes loosely through a hole in the lever, the lined u rm 20 having its free and enlarged utlQH-to form a. firm support for the arm 26 as it swings. If the lever is swung laterally toward the arm 26 the spring will be compressed, yieldingly controlling such movcment of the lever, the movement being useful at the time of heatup, as will be referred to hereinafter. 13v loosening the nut 21 the fulcrum of euci lever can be moved toward or away from the loom-side, and the distance varied between the fulcrnm and the point on the lever at which the leg 9 rests.

The warp-beam is in its general structure of usual construction, in so far as it com risesa barrel 29, attached circular hea s 30, and a central shaft presenting journals 31 which rest in the bearings 10 during unwinding of the beam, but so far as concerns the relation between the barrel and the heads our beam is materially different from beams heretofore made. Ordinarily the barrel is so small that when the beam is full, the warp leverage, i. 0., the distance from the axis of the beam to the point on the circumference of the yarn muss atiwhiclrthe warp leaves it, is more than three'times as great as when the-beam is emlpty. I

nasmuch as the letting off of the warp in ourresent invention-is controlled by the wei' t'ofithe'beam between full and empty' con 1t1ons,' aswillbe explained,'such wei ht bem'g'iibout' m the ratio of 2% to 1, it wilibc -ma'urfest thatin order-to make the variatxon'gn weight balance the variation in warp ;.lev era e t he .benm must be so constructed that't efltwoiratios' will be substantially the stung-{so thatasubstantiully uniform tensien' pon the warpcan beobtained throughhe unwinding-- of. the beam.- To this havej jmatermlly. increased-.the diamehe'; barrel"i29"-' and in; o'rder to beam th jsa'nieianiountgof yarnwe have slightly mased'jttlie diameter of the. beam-heads, but-1n iametero'f the latter, is practically that-"jhflliell-barreh s The-full beam bygtheidottedlines32,: Fig.- 1,

and when the unwinding of a full beam bcgins the warp leverage will be the distance from one of said lines 32 to the axis of the beam,.such leverage gradually decreasing to the radius of the barrel .29 when the beam is empty, the latter leverage being practically twmtifths of the former leverage, at full beam. "0 thus have the leverage ratio of 2?. to; 1- between full and empty beam, whici is'snbstantiallythc same as the weight ratio-betweem full and empty beam. It will now be; manifest that. as the weight of the. beam decreases the warp leverage decreases with it so that if the letting off of the yarn is governed by the weight. of the beam the warp'leverage variation will act in accord therewith to etlect uniform tension on the warp.

As the-beam-jtmrmtls rest upon the movable bearings 10 it will be seen that-the weight of the beam is transmitted through thebearing legs 9 to the supporting levers 14, and the latter are thereby pushed downward. g'lhisdownward push is resisted bv flexiblefrict-ion. members of a beam retarding device, said membersbcing shown as chains wound around friction sheaves or pulleys 34: rotatable with the beam. the ends of each flexible member being connected with a st-irrupI-EF) slidably mounted on the free endof each lever 14. \Vhen the fulcra of the beam supporting levers are adjusted ouh or in the St-ll'ltl38 are slid along the levers to position )eneath the friction sheavcsB-t, the legs 0 engaging the levers betweentheir fulcra and the stirrups, as shonvni,..ll1e grcaterthe weight. of the beam ther stronger will bethe downward force cxertedjupon thelevers, and the greater the retarding-=ctfect of. the friction retarding means upon the beam, but as the beam lightenslin tlie' proecss offunwindiug: the retardat-ion-ofi rotationzdiminishcs in exact accord, so= that; the; action uponthe warp in letting all" is, substantially lunifornr from full to empty;- beam... -Asthe warp leverage. dccreascsimt-he same proportion, for reasonsscbrforth -there is nothing to interfere with tho-imi-foum tcnsioning of the. warp,. as .will. be obvious.-'.

'1lhe b 'mrjournals-31 extend across the upright. 'rear pulLo'f the w-arp holds the journals forward during weaving, but we have foundi-that by thafuse 'qf. the-springs 25! we --obviate what ma --t'o. a -cntai n-jextent be. termed a dead pn on.,t1 1 e:.warp dtiring,unwinding, and; wbsn batup occursg Thatz is, thcjyarnach ing atA-tlloJtopiof; the beam tends-to throw rcarw-ardthc lower. endsof the legs 9, and this.- in turn..-tcz'1dsto swing. thelevers l--lab erally,.or f6t1l'ttt'.(1 fl'll such: movement: being yleldingly" controlledbythe springs, so that: there is. a slight.

,faccs'of theseats- 4, and. thefrom the webs 17,.

give or yield in the direction of warp travel. \Vhen beat-up takes place the warp is tightened and subjected to strain, and the springs tendto I'LllQVt snrh strain, the beam in practice having a slight oscillatory movementabout. its axis, due to this construction and arrangement. \\-'e have found that there is less tendency to yarn breakage with than without the springs, and the latter also tend to eliminate the formation of thin or uneven places in the cloth. The fixed guides 8 permit; the requisite play of the bearing legs, back and forth, as shown in Fig. 4, wherein the guide is partly broken out, while properly guiding the relatively slight up and down movement of said legs. 1n ()lt cr to thoroughly explain the above described action let it be assumed, momentarily, thatthe chains 33, stirrups 35, the connections between the chains and stirrnps, and the levers l-t are all rigid, and rigidly connected to one another and to the beam. It will also be assumed that said levers l-it are not restrained -from moving except by the springs 25. If, now, the beam be rotated slightly, as by a mll on the war 7, such as occurs when the lay cats in the til ing, the assumed rigidly connccted and rigid parts will also swing or rotate about the beam journals 3t as centers, the. levers t-l moving bodily rearwardagainst the resistance of the springs 25. Let, the stirru )s 35 be now considered as loosely, instead of rigidly, attached to the levers l4, and the outer ends ofthe latter be considered as actually constructed (see Fig. 3) saidlevcrs would be rocked on their fulcrums by reason of the warp pull, and the springs would be compressed as before, but to a somewhat lesser extent. This is identically what occurs in the actual operation of. the loom in practice, for we find that when the weight of the beam and yarn mass is ont-he chains they act as if they were rigid parts of the beam, so far as their effect; upon the levers 14, at the time of beat up,.is concerned.

\Vhateverthe condition of the beam, between fall and empty, it will be seen that tho-weight acts with greater or less force upon the friction retarding or letting otl' device, so.long as the beam journals are sustainedin the bearings 10, andin order to readily turnthe beam forward or back when necessary we have provided manually operated means to temporarily support the beam and take its weight otl' the movable bearings, thereby relieving the beam from t-hefriction retarding device. To this end 'we.mount on each of the fulcrum studs 7,

--whichlatter are shown at right angles to and=below the beam journals 31. a temporary support. comprisinga cam head 36 having a concave seatBT, and an elongated, normally tdapending handle 38.

Ordinarily the tent-- porarysupports are positioned as shown in ,.full lines Figs. 1 and 2, the cam heads 36 being turned outward and entirely out of engagementwvith the beam journals. \Vhen the handles 38 are swung outward and up into dotted line )osition, Fig. 1, the cam shape of the hear s brings the curved and conca'ved seats 37 under and gradually lifts the journals 31 of the beam, so that they will -1a-' be entirely disengaged from the bearin 's 10,

the'final operative position of the heads be- ;fing shown indotted lines Fig. 1. At such ,time the heads are thrown over slight-1y astdead center, the inner end of each seat a nt- .15 ting a aiust. the top of the ear (3 where it joins t to bracket. 2. \Vhcn the beam is held 1n.the temporary supports it can be readily turned forward or back, as will be obvious, V 1* and return of the handles 38 to normal position resents the beam journals in the movable bearings 10. \Ve have shown the warp 39, Fi 2, as leading from the beam over a fixe whipbar 40, vertically adjustable by means of set screws 41 on a stand 42 supported by brackets 43 on the loom-sides, said brackets also sustaining a warp-stop-motion comprising drop-detectors 44 and a normally vibrating .feeler 45, the connection between the feeler and the stopping instrumentality of the loom formingno part of our present invention.

Inasmuch as the yicldin movement of the warp-beam, reviously described, obviates any dead pull on the warp we are enabled to dispense with a yieldingly controlled-and normally movable whip-bar, the vertical adjustment being provided to vary the height 'of the sheet of warp as may be necessary. Fixed guide-bars 46 cooperate with the fdet ectors, to guide them in their vertical movement and to support a dro ped detector, the detectors being shown in Fig. 2 as arranged in two banks or series, and they 'can be utilized alsoto divide or lease the 45. warp if desired. I

M bile our invention will give a substantiallyuniform tension on the wnrpirom full f t'oij'empty beam it is well known that dif- "ferent kinds of goods re uire different ben- "ion'.-"' This-we Jrovide or by the adjustb lelfulcra'of t e, levers 14, so asto impart'"greater "or less, but; uniform tension, hrough'out the unwinding of the beam {that s,-,-"any.tension desired will besubstantially miform fromfull to empty beam. Our inention'f'ls not restricted, however, to' the articular arrangement of the whip bar'no'r thei'p'artieular warpstop-motion shown, n hef-1-;sameis illustrative, and -various -=o0-; ch geslmn be made by. those-skilled in the .a rt' in -details 'of construction and arrangemnt without departing from the spirit and scope of our invention as set forth in the appended jclaims, j i

Iavin'g jfully described our in r invention,

what. we. claim as new and desire to secure by Letters Patent is 1. In friction let -otf mechanism for looms, a warp-beam having a barrel of large diameter relatively to its heads, the beam being rotated by the pull of the warp, combined with vertically movable bearing members for the beam, pivoted lovers on which said members are supported, and friction retarding means for the beam connected with said levers, the weight of the beam acting through the lovers to reduce the action of said retardin; means in proportion to the diminution in weight as the beam unwinds, the warp leverage and the decrease in weight varying in substantially the same ratio from full to empty beam and imparting uniform tension to the warp.

3.. In friction let-oll' mechanism for looms, a warp-beam having attached friction sheaves, vertically movable bearing members for the beam, levers on which the bearing members are supported, means permitting adjustment of the fulcra for the levers with relation to the movable bearings, and flexible friction members passed around the shea'ves and attached to the levers, whereby the retarding action of the friction devices is directly governed by and in accordance with the weight of the beam, adjustment of the lever fulcra permitting regulation of the tension on the warp.

3. In friction let-off mechanism, a warpbeam, frict ion-retarding means therefor, and an instrumentality to sustain the beam and automatically govern the action of the retzarding means according to the weight of the beam, said instrumentality including means to permit yieldingly-controlled retative movement of the beam when the beatnp occurs.

st. In friction let-oil mechanism for looms, a. warp-beam having attached friction sheaves, movable bearing members for the beam, fixed guides in which the upper ends of said members are vertically movable, and movable fore and 'aft. to a imited extent, levers on' which the lower ends of the hearing members rest, fulcra for the outer ends of the levers, the latter having slight. lateral movement on their fulera, springs to govern the lateral movement, and flexible friction members embracing the sheaves on the beam and attached to the levers.

In friction letolT mechanism for looms, a warp-beam, movable bearing let-oft mechanism for looms, a warp-beam, friction retardin means therefor governed automatically and directl by the weight of, the beam, and manna ly operated means to remove the beam from the control of said retarding means and temporarily su port said beam.

7. In friction let- 0 looms, a warp -'beam, verticall bearin members therefor, retar ing means for an acting directly upon the beam and governed automatically by the variation in weight from full to empty beam, positive connecting means between the bearing members and said retarding means, and means to vary the warp leveragein substantial accord with the weight variation.

8. In let-off mechanism for looms, 'a warpbeam having friction sheaves attached thereto, movable bearings for the beam journals, each bearing having a depending leg terminating in a notched end, so porting levers fulcrumed at their outer en s and extended inward, a stirrup longitudinally adjustable on the inner end of each lever, flexible friction members attached at their ends to the stirrups and wound around the sheaves, the notched ends of the legs embracing the levers between their fulcra and the stirrups,

' movable fixed guides forthe bearing legs, and means Correction in Letters Patent Nb. 912,942.

to laterally adjust the lever fulcra.

9. In let-ofl' mechanism for looms, a warp- I beam, vertically movable bearings therefor, fixed guides for said bearings, mounted on the loom-sides, levers upon which the-bearrugs are supported, frictionretarding memhers connected with the levers and coopervating with the beam, and manually movable temporary supports for the beam, fulcrumed Patent Oflice..

[scan] mechanism for Signed and sealed this 2nd day of March, A. 1);, 1909.

on the loom-sides and having cam-heads to enga e and lift the beam journals from the move. 1e bearings. 10. In let-o mechanism for looms, a warp-beam, combined supporting and tion retarding means for t e beam, to automatically govern the letting off of the wa 'by or through the weight -of the beam, sai

means including devices to permit yieldingly-controlled rotative movement of the beam at the time of beat-up, and a whip-bar overwhich the warp passes from the beam.

11. In let-ofi' mec anism for looms; a friction let-ofi', a beam upon which the warp is wound, bearings to normally support the .same vertically,- and manually operated means .to \relieve the friction let-off and temporarily engage and support the beam independently of said bearings, said means being norma ly disconnected from and out of cooperation with the beam.

12. In let-ofi' mechanism for looms, a beam upon which the warp is wound, mechanism to control the rotation thereof, and manually ope-rated means to temporarily sup ort and remove the beam from thecontro of said mechanism said means being normally disconnected from and out of coiiperation with the. beam.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

-WILLIAM DRAPER.

EVERETT S. WOOD.

Witnesses:

FRED E. Woon, SHELLEY V. VINCENT.

It is hereby certified that ih Letters Patent No. 912,942, granted February 16, 1909, upon the application of William F. Draper and Everett 3. Wood, of Hopedale, Massachusetts, for an improvement in Let-0if Mechanism for -Loom s,f an error-appears in the printed specification requiring correction, as follows: In line 121, page 4, the word bearing should read bearings; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the o. c. BILLINGS,

Acting Gommiuioflerof mun looms, a warp-beam, friction retardin means therefor governed automatically and directl by the weight of, the beam, and manna ly operated means to remove the beam from the control of said retarding means and temporarily su port said beam.

7. In friction let- 0 looms, a warp -'beam, verticall bearin members therefor, retar ing means for an acting directly upon the beam and governed automatically by the variation in weight from full to empty beam, positive connecting means between the bearing members and said retarding means, and means to vary the warp leveragein substantial accord with the weight variation.

8. In let-off mechanism for looms, 'a warpbeam having friction sheaves attached thereto, movable bearings for the beam journals, each bearing having a depending leg terminating in a notched end, so porting levers fulcrumed at their outer en s and extended inward, a stirrup longitudinally adjustable on the inner end of each lever, flexible friction members attached at their ends to the stirrups and wound around the sheaves, the notched ends of the legs embracing the levers between their fulcra and the stirrups,

' movable fixed guides forthe bearing legs, and means Correction in Letters Patent Nb. 912,942.

to laterally adjust the lever fulcra.

9. In let-ofl' mechanism for looms, a warp- I beam, vertically movable bearings therefor, fixed guides for said bearings, mounted on the loom-sides, levers upon which the-bearrugs are supported, frictionretarding memhers connected with the levers and coopervating with the beam, and manually movable temporary supports for the beam, fulcrumed Patent Oflice..

[scan] mechanism for Signed and sealed this 2nd day of March, A. 1);, 1909.

on the loom-sides and having cam-heads to enga e and lift the beam journals from the move. 1e bearings. 10. In let-o mechanism for looms, a warp-beam, combined supporting and friction retardlng means for t matically govern the letting off of the wa 'by or through the weight -of the beam, sai

means including devices to permit yieldingly-controlled rotative movement of the beam at the time of beat-up, and a whip-bar overwhich the warp passes from the beam.

11. In let-ofi' mec anism for looms; a friction let-ofi', a beam upon which the warp is wound, bearings to normally support the .same vertically,- and manually operated means .to \relieve the friction let-off and temporarily engage and support the beam independently of said bearings, said means being norma ly disconnected from and out of cooperation with the beam.

12. In let-ofi' mechanism for looms, a beam upon which the warp is wound, mechanism to control the rotation thereof, and manually ope-rated means to temporarily sup ort and remove the beam from thecontro of said mechanism said means being normally disconnected from and out of coiiperation with the. beam.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

-WILLIAM DRAPER.

EVERETT S. WOOD.

Witnesses:

FRED E. Woon, SHELLEY V. VINCENT.

It is hereby certified that ih Letters Patent No. 912,942, granted February 16, 1909, upon the application of William F. Draper and Everett 3. Wood, of Hopedale, Massachusetts, for an improvement in Let-0if Mechanism for -Loom s,f an error-appears in the printed specification requiring correction, as follows: In line 121, page 4, the word bearing should read bearings; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the o. c. BILLINGS,

Acting Gommiuioflerof mun e beam, to auto It is hereby certified that in Letters Patent No. 912,942, granted February 16, 1909, upon the application of William F. Draper and Everett 8. Wood, of Hopedale, Massachusetts, for an improvement in Let-Off Mechanism for Looms, an error appears in the printed specification requiring correction, as follows: In line 121, page 4, the word bearing should read bearings; and that the said Letters Patent should he read with this correction therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 2nd day of March, A. D., 1909.

[SEAL] C. C. BILLINGS,

Acting Commissioner of Palm". 

